// constants for internal usage
export const SET_A = 0;
export const SET_B = 1;
export const SET_C = 2;

// Special characters
export const SHIFT = 98;
export const START_A = 103;
export const START_B = 104;
export const START_C = 105;
export const MODULO = 103;
export const STOP = 106;
export const FNC1 = 207;

// Get set by start code
export const SET_BY_CODE = {
  [START_A]: SET_A,
  [START_B]: SET_B,
  [START_C]: SET_C
};

// Get next set by code
export const SWAP = {
  101: SET_A,
  100: SET_B,
  99: SET_C
};

export const A_START_CHAR = String.fromCharCode(208); // START_A + 105
export const B_START_CHAR = String.fromCharCode(209); // START_B + 105
export const C_START_CHAR = String.fromCharCode(210); // START_C + 105

// 128A (Code Set A)
// ASCII characters 00 to 95 (0–9, A–Z and control codes), special characters, and FNC 1–4
export const A_CHARS = '[\x00-\x5F\xC8-\xCF]';

// 128B (Code Set B)
// ASCII characters 32 to 127 (0–9, A–Z, a–z), special characters, and FNC 1–4
export const B_CHARS = '[\x20-\x7F\xC8-\xCF]';

// 128C (Code Set C)
// 00–99 (encodes two digits with a single code point) and FNC1
export const C_CHARS = '(\xCF*[0-9]{2}\xCF*)';

// CODE128 includes 107 symbols:
// 103 data symbols, 3 start symbols (A, B and C), and 1 stop symbol (the last one)
// Each symbol consist of three black bars (1) and three white spaces (0).
export const BARS = [
  11011001100, 11001101100, 11001100110, 10010011000, 10010001100, 10001001100,
  10011001000, 10011000100, 10001100100, 11001001000, 11001000100, 11000100100,
  10110011100, 10011011100, 10011001110, 10111001100, 10011101100, 10011100110,
  11001110010, 11001011100, 11001001110, 11011100100, 11001110100, 11101101110,
  11101001100, 11100101100, 11100100110, 11101100100, 11100110100, 11100110010,
  11011011000, 11011000110, 11000110110, 10100011000, 10001011000, 10001000110,
  10110001000, 10001101000, 10001100010, 11010001000, 11000101000, 11000100010,
  10110111000, 10110001110, 10001101110, 10111011000, 10111000110, 10001110110,
  11101110110, 11010001110, 11000101110, 11011101000, 11011100010, 11011101110,
  11101011000, 11101000110, 11100010110, 11101101000, 11101100010, 11100011010,
  11101111010, 11001000010, 11110001010, 10100110000, 10100001100, 10010110000,
  10010000110, 10000101100, 10000100110, 10110010000, 10110000100, 10011010000,
  10011000010, 10000110100, 10000110010, 11000010010, 11001010000, 11110111010,
  11000010100, 10001111010, 10100111100, 10010111100, 10010011110, 10111100100,
  10011110100, 10011110010, 11110100100, 11110010100, 11110010010, 11011011110,
  11011110110, 11110110110, 10101111000, 10100011110, 10001011110, 10111101000,
  10111100010, 11110101000, 11110100010, 10111011110, 10111101110, 11101011110,
  11110101110, 11010000100, 11010010000, 11010011100, 1100011101011
];
